Improvement in miners  lamps



J. FLEMING.

Miners Lamp.

No. 219,352. Pater fled Sept. 9,1879.

77 (253140012 e/J V V jzaeJa ar 24 ZZZ N. PETERS, FHOTO-LITHDGRAFNER, WASHINGTON, n. c.

UNITED, STATES PATENT OFFICE.

JOHN FLEMING, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN MINERS LAMPS.

Specification forming part of Letters Patent No. 219,352, dated September 9, 1879; application filed July 24, 1879.

To all whom it may concern:

Be it known that 1, JOHN FLEMING, of Pittsburg, in the county of Allegheny, State of Pennsylvania, have invented a new and use ful Improvement in Miners Lamps; and I do hereby declare that the following is a full,

clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

My invention relates to an improvement in miners lamps; and consists in providing the body of the lamp with a bottom of hard metal in oont-radistinction to tin. I

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction.

In .the accompanying drawings, which form part of my specification, Figure l isa side elevation of an ordinary miners lamp provided with my improvement. Fig. 2 is a section of the lamp, showing the position of the bottom in the lamp. Fig. 3 is an edge view of the bottom.

In the drawings, A represents the body of the lamp; B, the wick-tube; (J, the lid, and

D the hook or handle, all of which are of the ordinary construction and material.

0 is the bottom, which is made of any of the hard metals, such as cast-iron, wrought-iron, brass, or malleable iron. The bottom 6 is provided with a flange, f, which supports the lower edges of the body of the lamp, and a flange, f, supporting the lower inner wall of the lamp. The bottom is secured to the body by the soldering process.

In order to raise and lower the wick in the tube, miners always strike the edge of the lamp-bottom against some hard substance, which soon damages the ordinary tin-bottom lamps, and they become leaky and useless; but a lamp provided with my improved bottom will stand any amount of striking, the flange f protecting the body from coming in contact with any hard substance, while the flange f supports theinner wall.

A lamp constructed with the improved bottom, as herein described, willbe of great utility,

very lasting, and very desirable. 

